Question

Explain the dimensional formulae and it's dimensional equations.

Answer 1

Dimensional Equations and Formulas of Physical Quantities. The dimension of a physical quantity is defined as the power to which the fundamental quantities are raised to express the physical quantity. ... We say that dimension of velocity are, zero in mass, 1 in length and -1 in time.

Answer 2

hi mate.............

here's ur answer.........!

Dimensional formula is an Expression that shows how and which fundamental units are required to represent physical quantity.

Dimensional equation is obtained by equating physical quantity with it's dimensional formula.

A given physical relation is dimensionally correct when the dimension various terms are same on the either side.

Dimensional formula is commonly written in the form of MLT.

For example - Length - M°LT°
Area - M°L^2T°
Force - M°LT^-2
Momentum - MLT^-1
Volume - M°L^3T°

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